使用 NETBEANS 从 jar 文件中读取资源

Question

I am trying to read resources from java class.
I have read a lot of information on the net, but not found a good one that solve my problem.
I wand to set icons dynamically fron png files.
On netbeans 8.2/Windows 7 the solution used is working
But when I create a jar for the program, with the same icon path I got a null value for the url.

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      pathToImage = "/images2/letter-E-icon.png";                 // OK in netbeans, KO in jar<br/>
  ImageIcon img;<br/>
  putConsole("pathToImage= "+pathToImage);<br/>

  URL url = this.getClass().getResource(pathToImage);<br/>
  putConsole("url= "+url);<br/>
  img = new ImageIcon(url); <br/>
  JmenuItem_ENC.setIcon(img);<br/>

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Below is the source structure and after the jar structure I suspect a problem with netbeans. Can you help me? Thanks

enter image description here

*** VARIOUS STRUCTURES ******
1) Source files
\\dev\\java\\MyCrypt_RC1
build
3ÿ883 build.xml
dist
nbproject
src
test
\\dev\\java\\MyCrypt_RC1\\build
68 built-jar.properties
classes
depcache
empty
generated-sources
\\dev\\java\\MyCrypt_RC1\\build\\classes
\\dev\\java\\MyCrypt_RC1\\build\\classes\\enc_dec
7ÿ688 AES.class
3ÿ872 APP_CNST.class
2ÿ243 CryptAES.class
502 CryptoException.class
726 DisplayFile$1.class
8ÿ001 DisplayFile.class
\\dev\\java\\MyCrypt_RC1\\build\\classes\\images2
BUILD all icons .....
756 add_entry-icon.png
\\dev\\java\\MyCrypt_RC1\\build\\classes\\resources
323 admin_properties.properties
\\dev\\java\\MyCrypt_RC1\\dist
lib
238ÿ859 MyCrypt_RC1.jar
\\dev\\java\\MyCrypt_RC1\\dist\\lib
35ÿ843 jgoodies-common.jar
122ÿ504 jgoodies-forms.jar
481ÿ534 log4j-1.2.16.jar
348ÿ143 MyLib.jar
\\dev\\java\\MyCrypt_RC1\\nbproject
80ÿ592 build-impl.xml
475 genfiles.properties
private
3ÿ210 project.properties
565 project.xml
\\dev\\java\\MyCrypt_RC1\\src
enc_dec
images2
resources
\\dev\\java\\MyCrypt_RC1\\src\\enc_dec
...... all java code ..........
\\dev\\java\\MyCrypt_RC1\\src\\images2
SRC all icons
756 add_entry-icon.png
1ÿ211 xopen_all.png
\\dev\\java\\MyCrypt_RC1\\src\\resources
other resources from properties
323 admin_properties.properties
=======================================================================
2) Jar file hierarchy
\\dev\\java\\MyCrypt_RC1\\dist\\zip
enc_dec
images2
META-INF
resources
\\dev\\java\\MyCrypt_RC1\\dist\\jar\\enc_dec
.... All classes .....
\\dev\\java\\MyCrypt_RC1\\dist\\jar\\images2
.... All icons .....

756 add_entry-icon.png
\\dev\\java\\MyCrypt_RC1\\dist\\jar\\META-INF
243 MANIFEST.MF
\\dev\\java\\MyCrypt_RC1\\dist\\jar\\resources
323 admin_properties.properties

Answer 1

I have been busy to solve this problem. I restarted all freshly with a new project and I manage to find the correct solution.

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In the following figure, I indicate what is working for the directory structure:

Thanks for the help This is the directory structure (clik)